A pesar de la fudre en el callejón, los niños jugaban felices con su pelota.
Despite the filth in the alley, the children were happily playing with their ball.
La fudre acumulada en el rincón del callejón era un peligro para la salud de los vecinos.
The filth accumulated in the corner of the alley was a danger to the health of the neighbors.